What assistance is available, if any?

My 14yr daughter has recently been diagnosed with Aspergers.  She is a HUGE BTS fan and they will be playing a concert in London in July.

We went to a concert last year which had a mix result. She had a huge meltdown going into the venue but was able to stay for the concert. After a lot of talking from Mummy. At that stage, we thought she was suffering from social anxiety with panic attacks. However, the BTS concert will be three time if not four times bigger (it’s at Twickenham) and I am extremely worried how she will handle it. She wants to go so badly!

We visited London last summer and once again she had a meltdown after just a few hours of being in the city. The number of people was just too overwhelming for her.

To add to any complication, we live in Switzerland so any British accepted disability ID that would be accepted by the venue we would not have.

Does anyone have any suggestions, thoughts, ideas?

TiA